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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-05-28 15:52:04 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-28 16:46:14 -0700
commit8e21683bb458c73c6fe87844202a64eac730995e (patch)
treea8fcfafdbbdec7e4e2513cc0304ad49f81658f92 /arch/um/kernel/tt
parent[PATCH] uml: fixlet for arch_prctl_skas (diff)
downloadlinux-dev-8e21683bb458c73c6fe87844202a64eac730995e.tar.xz
linux-dev-8e21683bb458c73c6fe87844202a64eac730995e.zip
[PATCH] uml: remove jail mode + other leftovers
This var is currently useless, as it's apparent from reading the code. Until 2.6.11 it was used in some code related to jail mode, in the same proc.: if(jail){ while(!reading) sched_yield(); } jail mode has been dropped, together with that use, so let's finish dropping this. Also, remove some other useless definitions I met. Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/kernel/tt')
-rw-r--r--arch/um/kernel/tt/process_kern.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index df810ca8fc12..776310fd5b8b 100644
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -32,10 +32,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
unsigned long flags;
int err, vtalrm, alrm, prof, cpu;
char c;
- /* jailing and SMP are incompatible, so this doesn't need to be
- * made per-cpu
- */
- static int reading;
from = prev;
to = next;
@@ -59,13 +55,11 @@ void *switch_to_tt(void *prev, void *next, void *last)
c = 0;
set_current(to);
- reading = 0;
err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c));
if(err != sizeof(c))
panic("write of switch_pipe failed, err = %d", -err);
- reading = 1;
- if(from->thread.mode.tt.switch_pipe[0] == -1)
+ if(from->thread.mode.tt.switch_pipe[0] == -1)
os_kill_process(os_getpid(), 0);
err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, sizeof(c));